Growler collar



FIG. 1 is a perspective view showing front and top of the invention, shown fixed to an unclaimed growler;

FIG. 2 is a perspective view showing front and top of the invention alone;

FIG. 3 is a front elevation view, which is a mirror image of the rear and side views;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a growler collar, as shown and described. 